From ce8f8385e099b5dfee521d58bba40771c072b0df Mon Sep 17 00:00:00 2001
From: Jookia <contact@jookia.org>
Date: Tue, 28 Jul 2020 14:13:17 +1000
Subject: [PATCH 1/7] fdts: stm32mp157ca-dk1: Use STPMIC on I2C2 and eMMC on
 SDMMC2

Quick hack to get things working on the Seeed Odyssey board.
---
 fdts/stm32mp157-pinctrl.dtsi | 10 ++++++++++
 fdts/stm32mp157a-dk1.dts     |  8 ++++----
 fdts/stm32mp157c.dtsi        | 14 ++++++++++++++
 3 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/fdts/stm32mp157-pinctrl.dtsi b/fdts/stm32mp157-pinctrl.dtsi
index 8e480b2c1..4b746b225 100644
--- a/fdts/stm32mp157-pinctrl.dtsi
+++ b/fdts/stm32mp157-pinctrl.dtsi
@@ -214,6 +214,16 @@
 				};
 			};
 
+                        i2c2_pins_a: i2c2-0 {
+                                pins {
+                                        pinmux = <STM32_PINMUX('H', 4, AF4)>, /* I2C2_SCL */
+                                                 <STM32_PINMUX('H', 5, AF4)>; /* I2C2_SDA */
+                                        bias-disable;
+                                        drive-open-drain;
+                                        slew-rate = <0>;
+                                };
+                        };
+
 			sdmmc2_b4_pins_a: sdmmc2-b4-0 {
 				pins1 {
 					pinmux = <STM32_PINMUX('B', 14, AF9)>, /* SDMMC2_D0 */
diff --git a/fdts/stm32mp157a-dk1.dts b/fdts/stm32mp157a-dk1.dts
index 4ea83f7cd..78681b0ba 100644
--- a/fdts/stm32mp157a-dk1.dts
+++ b/fdts/stm32mp157a-dk1.dts
@@ -29,9 +29,9 @@
 	st,digbypass;
 };
 
-&i2c4 {
+&i2c2 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&i2c4_pins_a>;
+	pinctrl-0 = <&i2c2_pins_a>;
 	i2c-scl-rising-time-ns = <185>;
 	i2c-scl-falling-time-ns = <20>;
 	status = "okay";
@@ -162,9 +162,9 @@
 	status = "okay";
 };
 
-&sdmmc1 {
+&sdmmc2 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&sdmmc1_b4_pins_a>;
+	pinctrl-0 = <&sdmmc2_b4_pins_a>;
 	broken-cd;
 	st,neg-edge;
 	bus-width = <4>;
diff --git a/fdts/stm32mp157c.dtsi b/fdts/stm32mp157c.dtsi
index 0942a91c2..faa409f2d 100644
--- a/fdts/stm32mp157c.dtsi
+++ b/fdts/stm32mp157c.dtsi
@@ -312,6 +312,20 @@
 			status = "disabled";
 		};
 
+
+                i2c2: i2c@40013000 {
+                        compatible = "st,stm32f7-i2c";
+                        reg = <0x40013000 0x400>;
+                        interrupt-names = "event", "error";
+                        interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
+                                     <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+                        clocks = <&rcc I2C2_K>;
+                        resets = <&rcc I2C2_R>;
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        status = "disabled";
+                };
+
 		i2c4: i2c@5c002000 {
 			compatible = "st,stm32f7-i2c";
 			reg = <0x5c002000 0x400>;
-- 
2.27.0